Automatic sound reproducing machine



Marh 18,` 'R. R ROBINSON` 2,235,301 A AUTOMATIC SOUND REPRODUCNG MACHINEY Filed Nov. 14. 1939 12 Sheets-sheet 2 March 1s, 1941. R, R, ROBINSON12,235,301

l AUTOMATIC SQND REPRODUCING MACHINE :12 Sheets-sheet v4- Filed Nov. 14,1939 Roemer R. Raam/sow,

Mardi 1.18, 1941- R. R. RoBlNsvQN I 2,235,301

l Au'rolm'rc souuD REPRODUCING uAcHINE Filed Nov. 14, 1939 I2Sheets-Sheet 5 l sheets-sheet s wm.. Rh.

March 18, 1941. R. R. RoBlNsoN AUTOHATIC SOUND REPRODUCING MACHINE FiledNov. 14, 1939 March 18, 1941. 31531115011 2,235,301

AUTOMATIC SOUND REPRODUCING MAGHINEl Filed Nov. 14, 1939V v 12sheetssheet 'r March 18, 1941.

AUTOIAIIC SOUND REPRODEJCING MACHINE Filed Nov. `14, 1939 12sheets-sheet a R. R. RoBmsoN' 2,235,301-

March 18, 1941. n. ROBINSON 2.235.301 AUTOIATIC SOUND REPRODUCINGMACHINE I Filed NOV. 14, 1939 12 Sheets-Sheet 9 06527' afee/AMOA@ March.18, 41941 R. R.' RoBlNsoN 2,235,301 AUTOMATIC spmm nsrnonuclne ucm-NE hFiled Nov. 14, 1959 f '12 sheets-sheet 1o March 18, 1941.

" AUTOMATIC `scum) nrnonucm" MACHINE Filed Nov. 14, 1939 12 Sheets-Sheet1l SWW/Moc l\ N R. R. oBlNs'oN 2,235,301

March 18, 1941. 'R R RoBlNsoN 2,235,301

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Filed No?. 14, 19s9, 12 sheets-sheet 12 S NN MN NN. l NN Patented Mar.18, 1941 i UNED STATES 233.301 AUTOMATIC SOUND BEPRODUCING MACHINE rRobert R. Robinson, Los Angeles, Calif., assignor,

by mesne asslgnments,

Beverly Bills, Calif.

to George A. HormeL Application November 14, 1939, serial No. 304,343 17claims. (q1. 274.?15)

The present invention relatesto machines for the reproduction of soundand is particularly directed toward an automatic machine whereby one orany desired number of consecutive record- 5 ings can be reproduced froma record carrying a plurality of consecutive recordings in series on oneface thereof. The invention also contemplates a machine of thischaracter which is capable of being controlled by the insertion of coinsand which will automatically reset itself to replay the recordings afterthe last of the series has been reproduced. Moreover, 'the inventionpertains to numerous improvements, combinations l, andarrangements ofelements whereby absolute accuracy, ildelity and dependability inoperation is attained.

Heretofore theV reproduction of music,`songs,' skits and otherentertainment from records carried upon discs, cylinders or the like,has involved large machines which were expensive to build and whichoccupied. considerable amount of space.

At present, machines are available for playingv any one of a number ofseparate records, such 25 machines being coin actuated. The presentinvention, however, is directed to a very compact small unit whichinstead of employing a plurality of sound records employs a single discrecord.

one surface thereof carrying a consecutive seriesof recordings.Moreover, in the preferred embodiment of the invention the record usedin the machine of this invention differs from the phonograph records nowin use in that the sound recordingscarried by such record arereproducible 3, at a varying rotational speed of the disc and at`constant groove or recording speed. AIn the usual form of phonographdisc record the disc is driven at a constant number of revolutions perminute.V

As the tone arm or needle moves from the outer edge toward the center ofthe record, the-linear. speed or groove speed varies, the needletravers'- ing a much greater length of groove at the edge areas of therecord than in those areas adjacent the rotational center of the record.In the ma- 45 chine of the present invention the discis rotated i at arelatively slow speed -when the tonearmis adjacent the edge areas andthe speed of rotation increases as the tone arm reaches the rotationalcenter so that the actual linear speed is substan- 50 -tially uniformand constant throughout the f The present invention, generally stated,therefore. pertains to a machine of novel construction whereby any oneor more of a series of consecn 55 tive recordinsscarried upon a recordmay be .re-

produced, the reproduction being-automatic upon the insertion andactuation of a coin slot. Means are provided for positively terminatingthe re-` production at the end of a sound recording. for initiatingreproduction immediately upon actua- 5 tion of the coin slot, forcorrectly varying the speed of rotation of the turn-table, foreliminating vibration and extraneous noises from the reproducingapparatus, means 'for automatically resetting the device after itreaches its limit of travel in one direction, and means for positivelyand automatically initiatinga subsequent reproduction after resetting inprecisely timed relation to the recordings carried by the disc so thatno portion of a recording is overlooked or skipped. The apparatus ofthis invention is extremely accurate and positive in its action andthereby permits the use of record discs containing recording grooves ata much closer spacing than the spaco ing ordinarily' employed incommercial phonov graph record-s. By the use of very close spacing and alarge number of lines per'radial inch on the disc, as many as twelveconsecutive and `separate tunes or recordings may be carried on anordinary ten inch diameter disc, each of said recordings having aplaying time of say one and one-half to three minutes. y

An object of the present invention, therefore, is to provide a deviceparticularly adapted for ,use as an entertainment device in homes,cafes'.

waiting rooms, restaurants and the like which is compact, foolproof andaccurate and which permits the reproduction of any one or more of .anumber of sound recordings carried upon one surface only of a record. f

A further object is to disclose and provide novel arrangements andcombinations of elements whereby devices of the character stated maybereadily and economicallyconstructed. s t l Other objects, advantages,uses and adaptations of the invention will become apparent to thoseskilled inthe art from the lfollowing detailed description of onepreferred and illustrative embodimentA of the invention. In order to 45;

.facilitate understanding, reference will be had to Fig. 4 is anenlarged vertical section taken along the plane 4-4 of Fig. 2.

Fig. 5 is an enlarged plan view of the frame and carriage, theturn-table being removed.

Fig. 6 is a front elevation of the frame and motor carriage showing thearrangement of elements at the beginning of operations at the outeredges of a disc record.

Fig. 7 is a front elevation of a portion of the mechanism at the innerlimit of travel of the carriage. A l

Fig. 8 is a front elevation showing the arrangement of elements at theIinitiation of the return of the carriage to its initial startingAposition.

Fig. 9 is a front elevation showing the arrangement of the elementsimmediately prior to the resetting of the carriage into the positionindicated in Fig. 6.

Fig. 10 is the rear of the' device in elevation.

Fig. 11 is a vertical section taken along the plane II-II of Fig. 10.

Fig. 12 is a transverse' section similar to that shown in Fig. 11 butillustrating the action of the control cam. Y

Fig. 13 is a vertical transverse section taken along the plane I3-I3 ofFig. 10.

Fig. 14 is a similar section illustrating another position of theelements.

Fig. 15 is a horizontal section taken along the planeI5-I5 of Fig. 14.

' Fig. 16 yis a wiring diagram illustrating' the mode of operation ofthe apparatus.

Fig.17 is a vertical section through a slightly modied form of device.

Figs. 18l and 19 are` enlarged horizontal and vertical viewsrespectively taken along planes I8-I8 and I9-I9 of F1517.

Fig. 20 is a plan view of a portion of the modified form of device.

The form of apparatus shown in Fig. 1 includes a housing having sidepanels I and 2, a base and a top. The front panel, indicatedat 3, aswell as the side openings 4, 5. etc., may be made of translucentmaterial and suitably -illuminated from within the housing.' The frontpanel 3 may carry advertising matter and may include an illuminatedselection list, indicated at 6. The coin slot is indicated generally at1.

'Ihe entire device may be mounted either upon a table, counter orsuitable pedestal.

'I'he arrangement within the housing maybe understood most readily by anexamination of Figs. 2, 5, 6 andV 1,1. 'I'he major elements comprise aframe 8, a motor carriage 3 including a friction drive disc III, theturn-table II mounted upon the shaft I2, and the lead screw I3. Themotor carriage includes a lead nut lI4 (best seen in Figs. 13 and 14) bymeans oi which the cartor carriage drives the turn-table and theturntable causes the motor carriage to move radially from anV outerlimit of "travel near the edge of the turn-table to a point adjacent therotational center or shaft I2 of the turn-table. Variable rotationalspeed is thus imparted to the turntable.

The frame, generally indicated at 8. may comprise end castings I5 and I6connected together by means of parallel guide rods I1 and I8 which areparallel to the lead screw I3. `T'he lead screw I3 is iournaled in theend castings I5 and I6 and 5 may be provided with a spiral gear I9adapted 'to'me'i'ge with a worm 20' carried by the shaft I2 of theturn-table. The entire frame is suitably supported within the housingupon shockabsorbing supports, generally indicated at 2| in Fig. 6. A

`The motor carriage 9 is guidingly supported upon the rodsV I1 and I8 asby means of the rollers 22 and 23 which rest upon the guide rod I1 andthe roller 24 which runs on the surface of guide rod I8. Means may beprovided for retaining the carriage in position upon such guide rodssuch as, for example, the hook members 25 and 26 which are attached tothe carriage and which slidingly contact the lower surfaces of the guiderails I1 andi I8. A motor 21 is suspended from the carriage 9, saidmotor preferably depending below the guide rods so as to impart a lowcenter of gravity to the carriage. The motor drives a pulley 28 mountedupon shaft 23 and 25 a i'iexible driving connection such as the belts30, transmits power to a pulley 3| mounted upon a shaft 32 journaled ina lever arm 33. The shaft 32 also carries the friction drive disc I0.The lever 4arm 33 is pivotally connected to the car- 30 riage as at 34and the free end of such lever arm is suitably supported from thecarriage.

In the embodiment shown in the drawings, an auxiliary lever 35 ispivotallyattached near the end of the lever arm 33 and an adjustablespring 35 connection is made between the auxiliary lever and the leverarm, such spring connection including the spring 36 and the adjustablestop 31. One end of the spring 33 is connected to the auxiliary lever 34whereas the other end abuts 40 against the stop 31 which is held by thefree end oi' the lever arm 33.

The auxiliary lever 35 is yoke-like in form and a horizontal pin 33extends therethrough. The pin- 38 passes through the upper end of atoggle, 45 generally indicated at 33, which as shown may include thehexagonal nut 40 at its upper end. such nut being pivoted upon the pin38. Upper toggle links are indicated at 4I and the lower links at 42 and43. The lowerlink 43 is extended 50 so as to form a toggle latch member44. The upper toggle links 4I and the lower toggle links 42 and 43 arepivotally connected as at 45. The lower links 42 and 43, are pivotallyconnected as at 46 to a hex nut which then pivots upon a pin 55 41 atright. angles to the pin 43. In this manner rocking or pivotalconnections are established between the toggle 39 and the auxiliarylever arm 35 as well as the carriage 3, the pin 41 being suitably heldin a lower portion of the carriage.

At this point it will be noted that in the event the toggle 39 isbroken. the auxiliary lever arm 35 will be pulled down. The spring 36will still tend to move the lever arm 33 upwardly but with only a smallamount of pressure and depending 65 upon the adjustment 31 the spring 36may or may not Acause the lever arm 33 to move downwardly so as todisengage the drive disc III from the under side of the turn-table II.Moreover, when the toggle 31 is broken, some pivotal action 70 takesplace on the pins 38 and 41.

The position of the elements at the initiation -of a series ofreproductions is illustrated in Fig. 6. As the motor. carriage 9 movestoward the center ofthe turn-table and the shaft I2, the 75 elementsassume the position illustrated in Fig. 'I'. It will be noted that theend casting I9 carries a toggle trip lever 59 in the form of a bellcrank pivoted as at andyieldably urged outwardly against the approaching'toggle 39 by means of a spring 52.' This toggle trip lever 59 becomesspring-loaded and at the same time the movement of the carriage engagesthe linger 53 pivoted at 5l, said finger being connected to a camoperating link 55. The-finger 53 is pivotally connected to the link 55as at59 and the pin 51 of the mov'- able carriage moves the linger 53against the action oi' a loading spring 51' connecting the link 55 witha stationary bar or member 59 connecting the end castings I5 and l5. y.

The cam operating link 55 is pivotally connected as at 59 to a settingcam 59 which may be in the form of a sector provided with adepressededge portion 5| and a4 shoulder 52. A cam latch 93 provided with a pin94 is pivotally connected to the frame or end casting l5 as at 95 andwhen the finger 53 moves the cam operating link 55 toward the right, thecam 'latch 93 locks the setting cam in position as shown in Fig. 8.

A spring 56 may facilitate the movement of the cam latch, such spring 95connecting the short arm 91 of thecam latch with a setting lever 99.such setting lever being substantially curved or semi-circular andpivotally connected to the member 59 as indicated at 69. The settinglever 59 is provided with a roller or pin 19 extending into a S101; 1|formed in the setting cam en.' The the toggle 39 under the influence ofthe spring 52.`

slot 1| is angularly related to the pivot 12 of the setting cam so thatmovement of the setting cam 69 will cause pivotal movement of thesetting lever 59 -about'its pivotal point 91|.`

The toggle latch Il is normally locked in position by means of abell'crank 14 pivotally carried by the motor carriage 9, the bell crank14 having a lug engaging with a slot formed in the lower edge of thetoggle latch ll. As the motor carriage 9 moves toward the center of theturn-table. the upper or free end of the bell crank member 1I contactswith an adjustable stop mounted'in `the end casting I9 and continuedmotion toward the center of the turn-table causes the bell crank y lever1l to move so as to release the toggle latch 49 whereupon the toggletrip lever 59 acts to break the parts then assuming the positionillustrated in Fig. 8. The bell crank lever 14 is provided with a lightspringyieldably urging the same against the end of the-toggle latch Il.As soon as the'toggle 39 is broken, the lead nut I9 is disengaged fromthe lead screw 3 and the carriage is` returned to its original positionat the other side of the frame under'the influence of a spring 19connecting the motor carriage with the end frame AI5 asbest shown inFig. 5.

Byrefernng to Figs. 5 andv 1o 1t wiu be noted that means are providedfor holding the motor carriage in position after it returns to the outerlimit of travel. Such means may include the carriage stop pin 11provided with a head 19,*said head being adapted to. engage a latch 19carried by the end frame I5, the latch 19 being provided with a springyieldably'urgilng the same upwardly into engagement with the stop pin11. As the carriage stop pin engages the latch 19, a trip pin 99 on themotor carriage 9 contacts the adjustable stop 9| carried by the shortarm 91 of the cam' position shown in Fig. 9 to the position shown inFig. 9, this movement causing the setting lever 99 to rise and reset thetoggle 39. The blow of the setting lever against the toggle 39 does notmove the carriage 9 since such carriage isretained in position by meansof the carriage stop pin 11 and latch 19.' As soon as the toggle 39 isreset, the device is again in the position illustrated in Fig. 6 and iskready to repeat la series of consecutive reproductions. The release ofthe carriage stop pin and latch will be describedv hereinafter.

By now referring to Figs. 5, 6,11, 13 and 14, the I relationship betweenthe movements of the toggle and the engagement oi the motor carriagewith the lead screw I3 will become apparent. As shown in these iigures,the auxiliary lever 35 is provided with a bifurcated end portion or yoke(most clearly shown in Figg2) and indicated at 95, such yoke including acollar 99. Extending through this collar 99 is a connecting link 91provided with a stop 99 abutting the' sleeve 99. The upper end of thelink 91 may be provided with a head 99 and a spring '99 yieldably urgesthe link 91 and the stop 99 upwardly. The bottom of the link 91 ispivotallyconnected to a lead nut lever 9| which carries the lead nut i4,v

ward motion pivoting the lead nut llever 9| so as to disengage the leadnut Il from the lead screw I3. Upward motion of the lead nut lever 9|may be limited in any suitable manner as, for example, by means of anadjustable stop 92. A downwardly extending boss 93 of the motor carriage9 may carry a pin 99 against which the adjustable stop92 may rest. Thepin 94 may also act as a pivot'pin for a control lever 95, such controllever 95 being provided with a slot 99, -a pin 91V extending from thenut lever 9| through the slot 99 (seeFigs. '11,13, 14, 15). AV guidestrap 99 may be attached to the lever arm 9| as by means of the screws99 and slidably embrace the control lever 95 in order to prevent thecontrol lever 95' from binding. The end of the control lever 95 may beprovided wit a roller or pin |99. -v

lead screw shaft as by means of a set screw |92.

Although the control cam may assume diierent foi-main the drawings it isshown provided with. a cylindrical flange |93 having an opening |94therein. The'roller |99 of the. control cam 95 may ride on the externalsurface ofthe cylindrical portion |93 or may move inwardly through theopening |94. As long as the pin |99 of the control lever |95 'is ridingon the outside of the cylindrical portion |93 of the cntrol cam |9I,4v

the lead'nut lever 9| is depressed by reason of the slot and pinconnection 99, 91 and-the lead [nut I9 is disengaged from the lead screwI3.

The control cam |9| constitutes control means` for holding the lead nutout of engagement with the` lead screw until the latter reaches apredetermined and desired position. 'For this reason-the relationship oftheopening' |99 of the control cam ."Illl'to the lead .screw I3 is veryimportant. 'j r .By examiningFig. 13 it will. lbe seen that the roller|99 on the control lever 951s ridingon the outside cylindrical surface|93of the control cam lead screw |3. In Figs. 11 and 14 the roller |00of the control lever 95 is within the cylindrical flange |03 and thelead nut |4 is in engagement with the lead screw I 3.

The lead nut lever 9| also carries means for controlling a tone arm.Such means include the link ||0, the lever and the link ||2, the link||2 being connected at its upper. end to another link ||3 pivotallyconnected as at ||4 to the upper end of a tone .arm rest |l5 attached tothe carriage 9. The pivotal connection between the links ||2 and ||3includes a pin ||5 which is adapted to raise an arm ||1 attached to therod I| 4, such rod being deformed into a lifting cam I I5 as illustratedin Figs. 9, 10 and 1l. It will be evident that any upward motion of thelink 2 will cause the pin ||5 to raise the lever |I1 andthe tone armlifting crank ||5 but downward motion of the link I|2 does notpositively move the tone arm lifting crank ||5 but, instead permits suchcrank to move downwardly under the force of gravity.

'I'he tone arm itself, .indicated at |20, may be attached to the housinglof the entire device or mounted upon the carriage 5. In Fig. 2 the tonearm |20 is shown pivotally attached to the housing. In order to properlyposition the stylus of the tone arm and assure that such stylus willcontact the record held by the turn-table ata precisely located point,the frame 5 of the device may be provided with an upstanding member |2|having `a horizontally extending portion |22, such horizontallyextending portion being provided with a downwardly curving tip |23 (bestshown in Fig. 10). A transversely extending opening or slot is formedpart way through sumes the position shown in dotted lines in Fig.

10 and then slides upwardly until the prong of the member |25- entersthe funnel made by the shock vvspring |25 and the lip |24. Accuratepositioning of the stylus carried bythe tone arm is vthus obtained, thetone arm lifting the crank I I8 receiving the tone arm and depositing itupon the record ||9 carried by the table At this point it may bementioned that it has been found desirable to introduce`vibration-.absorbing material in the form of discs, strips or' a sheetbetween the tum-table and the record |9 for the purpose of absorbing anyvibration which may exist n the turn-table.

In some forms of device it has also been found desirable to use a stopshock bumper rod |30 extending between the end castingsll and I5 andcarrying a. stop |3| which is contacted by the movable carriage 9 at thetime that the ca rriage stop pin and latch 11, 19 engage. The

rod |30 may extend through a stumng box filled with resilient material|32 capable oi being compressedby` any adjustable member |33 carried bythe rod |30.

` Details of commotion of the-coin slott 1 need not be described sinceany suitable coin slotmay beused. "The "ooin slot illustrated consistsof a slide `1a having an opening 1b for the reception of a coin. themovement ofthe slide beyond a predetermined point being prevented byappropriate locking devices illustrated generally at 1c unless theproper coin is in place in the opening. Such locking devices alsonormally include ratch- 5 et means for preventing `full or partialreturn of the slide until the full stroke is completed. In the form ofdevice shown. a ratchet |40 is mounted upon a'shaf-t |'4I journaled in aU- shaped bracket |42 carried by a member |43 (see l0 Fiss. 2, 3 and 4)extending from -the front of the housing and adjacent the coin slot 1.Astopspring |44 cooperates witlrthe pawl |40 so as to permit a step bystep rotation of lthe pawl |40 under the influence of a pusher |45carried by the movable 15 elemenrt of the coin slot, the pusher |45engaging with the pawl so as to partially rotate the same at the end oflthe stroke of said pawl. Mounted upon the shaft |4| is a'brush ann |45adapted rto cooperate with a number of termi- 20 nais |41, |43, 149,etc., and constituting a. step switch |50.

By referring to Fig. 16, the brush arm just described is indicated at|45 and 'the step switch islndicated at |50. The venous terminals |41-25 |49 are connected by suitable leads, such as the leads -|5|,- |52 tocontacts |55, |51, etc., carried by a stop bar |55 which is positionedbetween the end castings I5 and I5. A movable brush arm |59 is carriedby the motor oan'iage 9 and 30 as clearly shown in Figs. 13 `and 14 isattached to the lead nut lever 5|. The stop bar |55 is preferably madeof insulating material, the various terminals |55, |51, etc., being'made of metal, the 'brush arm |59 being preferably made of a 35resilient strip of conducting metal such as phosphorbronze.

Itis to be noted that the brush arm |59 will contact with the variousterminals |55, |51, etc..

of the stop bar during movement of the motor 40 the movable carriage 9is returning to its outer limit of travel under the iniluence of thespring 15,' the brush arm |59 does not contact with :the terminals ofthe stop 55.

By will referring to Fig. 16. it will be noted that current from asuitable source is supplied by the lines |50, 15|. A step downtransformer, indicated at |52, is supplied `with lcurrent from thesupply lines. An amplifica', generally indicated alt |53, is alsosupplied with current from the line. The motor 21 lis" also supplied bythe line |5I, .the return line, indicated at |54, leading .to a relaygenerally lindicated at |55 having the coil |55 supplied with energy.through a line |51 leading to the transformer l|52 and including themain coin switch |58.y The low side of the transformer |52 is alsoconnected as by line |10 to a release coil |1.| of the relay |55, theother side of .the release coil, indicated at |12, leading to the shaft|4| of the step switch and to the brush arm |45. A laztch |1.|aassociated with the release coil-A |1=| serves to ordinarily lock therelay |55 in contact closing position until reenergizaltion of the:release coil .|1'| releases the 70 latch causing relay |55 -to open due#to the :resiliency of its contact members. A branch line |13 also leads.to a safety contact |14 on the stop bar. v

The leads |15, |15 leading to the 'ampliiier 75 |63 fromthe supply lines|60, |6| represent supply of current to a portion only of the amplider|63 for the purpose of maintaining the ampliner in a preheated or readycondition. Ordinarily the leads |1-5 and |16 furnish current to the.

V stopped in the position shown in fun lines rig.

16, operation of the electrical circuit illustrated is as follows:Manual operation of the. coin slide 1a` upon insertion of the propercoin causes the' pusher |45 to engage'the ratchet |49 close to the endof its stroke (and subsequent to the discharge o1' the coin from theslide 1a), rotating the arm |46 -to the position shown dotted, break ingthe circuit through the release coil (through line |10 from transformer|62, line |12, shaft |4|, arm |46, line =|5|,'contact |56, and brush |59to ground) and connecting one side of the transformer `|62 toline.|52through the release coil |1i|. However, the circuit through 'line|52 is incomplete so the latch |'|-|a may drop into position to engagethe contacts of the relay |65..

During the motion of the coin slidev 1a and immediately subsequenttomovement of the arm |46 oflthe contact connected to the lead .|5|,

momentary closure of switchl |68 is eilected by a suitable lug |68a onthe slide 1a, energizing the closing coil |66 to'closerelay |65 andthusclose the circuit through motor 21 and amplifier l|63. Relay .|65 islocked closed by the latch |1|a until operation of the devicev movesbrush |59 into contact with the contact |51, .whereupon the circuit isagain closed through release coil |1\|. Thisreleases relay |65, openingthe contacts until asubsequent operation of the coin.`

slide 1a again breaks the release'coil` circuit by Amovement of the arm|46 to subsequentv contacts y oi .the step switch. I

l:Lt will be seenthat each insertion of a coin advances the step switcharm |46 one contact and that the motor will continue to run until brushvarm |59 touches the particular contact on the stop bar |55 which isconnected to'fthe contact of the step switch' in contact with brush arm|46. It is only at this time that the release coil is energized to breakthe motor cir-- cuit. The device v.may thus be played continuouslywithout stopping so long es the arm ,|46 is, by the insertion ofsuccessive coins, kept advanced beyond the corresponding position of then' will be understood that the cima inustrated is elementary and thatmany reiinements therein may be made by one skilled in 'the art withoutdeparting from the operating principle thereof.

It .will thus be seen, that the device hereinabove l described includes,in combination with a turntable, a lead screw and a `motor carriageInov-l able along said lead screw, means whereby a plurality ofrecordings may be successively playedwhenever a coinv slot mechanism isactuated. In

the event more .than one coin is introduced into the coin slot, thedevice will continue to play successive recordings until the brush arm|59 makes connection with `a contact on the stop bar |55 which isconnected to a circuit closed by the step switch, the step switch beingactuat- 11, 18,l 19. In Ithis manner the carriage is positioned forpressure engagement of the lead nut lever with the lead screw. Means,controlled by theV lead screw, are also provided iorpredetermining theposition of engagement between the lead nut leyer and the lead screw sothat engagement of the lead nut lever with the lead screw 'takes placeonly at a predetermined position with the threads coinciding exactly.Since the movement of the lead nut lever controls the release o! thetone arm, the tone arm will contact with the record disc at a precisegroove or point, thereby assuringproper initiation of reproduction ofthe lfirst recording of a series whenever the motor carriage returns toits initial position and replaying of .the tunes is desired, and'assuring subsequent accurate timing.

The link connection 81 with its yielding spring 90 places the lead-nutlever in condition to engage the lead screw subject, however, to releaseby the control means or control cam |0|. The combination of the togglearrangement supporting the end of lever arm 33 together with theyielding linkage previously mentioned permits the friction disc i0 'toengage with the turn-table (when the motor carriage returns to outerlimit oi travel) and thereby slow down the rotational speed of -thetableand 'permit a positive tions are illustrated in Fig-s. 17 to 20. Asthere shown, the lever arm 33 is provided with an auxiliary lever 35 anda supporting toggle 39 is-employed similar to that previously described.The yielding yoke connection between the auxiliary lever 35 and theleadnut lever 9| c liers, howotally connected as at |84 to the end of the.

lead nut lever 9|. `A pin |85 is carried by the link |913, .the pin |85extending through -a slot '|36 formed in o. member |81 connected to theupper end oi .the toggle 39. A tension spring |38 connects the lever 9|with 'the member |81 so that when the 'toggle 39 is broken, the downwardmotion ofthe upper end of the toggle 39 is transmitted byfmember |81.andpin |65 to the link |83 and to the lead nut lever 9|, thereby causingsuch lead nut lever to diseng-age` thev nut from the lead screw. When,however, the

toggle 39 is straightened, the spring |36 is placedunder tension,thereby placing the lead nut lein. said apertures being covered by meansof' 1s tone arm |2I was shown pivoted from a stationthe guide roden. areiterando: having out-- ver," in condition -to engage with the leadscrew, subject, however, tothe action of the control cam ||I| and camlever 95 which is linked with the lever 9| by means of the pin 91 andthe slot 2l. I

Attention is also called to the tact that in the modiiled form the motoris suspended by shockabsorbing and vibration-dampening means so as 'toprevent any vibration from being transmitted to the reproducingmechanism. It will be noted that the roller 22 still supports a motorcarriage 2 .but that said motor carriage includes a transverse metalmember |90 having apertures there- `by means of the screws |95. Theentire motor 21 may be suspended from two of such resilient discs |22and it'will be noted that swinging aswell as vertical movement of themotor 21 can take without imparting any movement to the motor carriage Iper se.

In the original form' of device illustrated the ary support attached tothe housing. In the modiilcation illustrated in Figs. 17 to 20, the

tone'arm |22' is shown mounted upon a horizontally extending rod- 2l.carried by the tone arm rest III. This horizontally extending shaft or'bar 2li preferably parallels the lead 'screw I3 and the tone arm |2l' issuiliciently short so as to permit the stylus thereof to contact therecord carried bythe table at a point immediately above the point ofcontact between the friction `disc Il andthe bottom of the table Il..The

tone arm is thus carried by the carriage and although free to movevertically and horizontally to some extentwill move in a straightlineradially ot the tablelandnot in an are as the tone arm |2I previouslydescribed.a

It is to be also noted that in order to prevent of vibrations' from thecarriage or tone armsupport-iil to the tonef arm 12|', suitablevibration-dampening means maybe intro` duced between shaft 2li and thetone arm |22'. For example. the tonearm |2l' may be provided withbifurcated end portions 22| and 202 havlnl bores exceeding-in diameterthe diameter of wardiy flaring washer-like vends 2li and 2M may then beinserted between the bifurcated end portions 2l| and 222 andthe guiderod 2li. A member |22 similar to that previously described may becarried by the frame ofthe device for the purpose of facilitating theprecise location at which the tone arm |22' ispermitted to drop intocontact with the record on the turn-table.

It is to be understood'that although a specific embodiment of theinventionh'as been described. numerousv modifications and changes can bemade without departing from the present invention. Por example,thelatching means for holding the carriage at its outer limit of travelneed not include the specific elements hereinbefore described. such asthe latch means 11, 1l, 1s. Other latchfwmeans may be provided, such as.(or example, latch means carried the lead nut engagement with the screwIl releases the latch.

The particular forni of tone arm support and guide is not essentiai'andother forms may -be used interchangeably therewith. All changes andmodiilcations coming within the scope of the appended-claims areembraced thereby.

I claim;

v l1. In a phonograph including a turn-table, a. lead screw'driven bythe turn-table and a mo torcarriage movable along said lead screw, thecombination of: a lever arm pivotally connected to the carriage, saidarm carrying a friction disc adapted to make driving contact with'theturntable, a motor on said carriage and a driving connection betweensaid motor and said `friction disc; a lead nut lever pivotally connectedto said carriage, said lever carrying a nut adapted to engage the leadscrew to move the carriage to its inner limit of travel; spring meansfor moving the carriage to its outer limit of travel; means formovingsaidlever arm and lead nur. lever to disengage said disc' and nut,at the inner limit of. travel of the carriage; means for resetting saidlever arm when said carriage is at its outer limit of travel; and meansfor moving said lead nut lever to engage the nut car-1 rled thereby withthe lead screw at a controlled l said carriage, said lever carrying s.nut adapted to-engagetheleadacrewtomovethe carriageto its inner limit oftravel; spring means for lmoving the carriage to its outer limitoftravel:

means for moving said lever arm and lead nut lever to disengage saiddisc and nut, at the inner-limito! travel of the carriage: meansactuated by the movement of saidcarriage for automatically resettingsaid lever arm when said carriageisatitsouterlimitoftravel: andmeanscontrolled bysaid lead screw for moving said leadnut lever to engage thenut carried thereby with theleadscrewatacontrolledpointonly.

3. In aphonographineluding a turn-table, a

lead screw driven bythe tm'n-tablennda motor carriage movable along saidlead screw, the combinationof; a lever arm pivotally connected tothecarriage.s`aidarmcarryingafrictiondisc adapted to make drivingcontact withthe turntable,amotoronsaidcarriageandadriving connectionbetween said motor and said friction disc; a lead nut lever pivotallyconnected to said Acarriage. said lever carryinga nut adapted to engagethe lead screw tomove the carriage to its inner limit of travel; springmeans for moving the carriage to its outer limit of travel; a tone armsupport, provided with a tone arm. carried by the motorcarriag'e:and-means releasable by the carriage at the inner limito! travel thereoffor moving said leverv arm; lead nut lever and tone arm support todisengagesaid friction disc and nut and raise said tone arm.

.4. In a phonograph including a turn-table, a

tor carriage movable along said lead screw, thecombinationonaleverarmpivotallyeonnected-tothecarriage.saidarm.carryingafrictiondisc adapted to make drivingcontact with the turntable, a motor on said carriage and a drivingconnection between said motor and said friction disc; .a lead nut leverpivotally connected to said carriage, said lever carrying a nut adaptedto engage the lead screw to move the carriage to its inner limitoftravel; spring means for moving the carriage to its outer limit oftravel; a tone arm support, provided with a tone arm, carried by themotor carriage; means releasable by the carriage at the inner limit 'oftravel thereof for moving said lever arm, lead nut lever and tonearmsupport to disengage said friction disc and nut and raise said. tonearm; and means actuated by the return of the carriage to its outer limitof travel for resetting said levez.` arm. for

moving said lead nut lever to engage the nut' carried thereby with thelead screw, and for lowering the tone arm. A

5. In a phonograph including a turn-table, a lead screw driven by theturn-table. and a motor carriage movable along said lead screw, thecombination of: a lever arm pivotally connected to the carriage, saidarm carrying a friction disc adapted to make driving contact with theturntable, a motor on said carriage and a driving connection betweensaid motor and said friction disc; a lead nut lever pivotally connectedto said carriage, said lever carrying a nut adapted to engage the leadscrew to move the carriage to its innerl limit of travel; spring meansfor moving the carriage to its outer limit of travel; a tone armpivotally supported to move over the turn-table; means releasable by thecarriage -at 5 the inner limit of travel thereof for moving said leverarm, lead nut lever and tone arm to disengage said friction disc and nutand raise said tone. arm; means actuated by the return of the carriageto its outer limit of travel for resettingV 'said lever arm and engagingthe friction disc `carried thereby with the turn-table; andmeanscontrolled by the lead screw `for moving said lead nut lever to engagethe nut carried thereby with the lead screw and for lowering the tonearm at a controlled point only of said lead screw.

6. In a phonograph including a turn-table, a

lead screw driven by the turntable, and a motor carriage movable alongsaid lead screw, the combination of: a lever arm pivotally connected tothe carriage, said arm carrying a friction disc adapted to make drivingcontact with the turntable, a motor on said carriage and a drivingconnection between said motor and said friction disc; a lead nut leverpivotally connected to said a5 carriage, said lever carrying a nutadapted to engage the lead screw to move the carriage to its inner limitof travel; spring means for moving the carriage to its outer limit oftravel latch means for holding said carriage at itsouter limit 60 oftravel; means actuated by movement of the carriage to its inner limit oftravel for moving said lever arm Aand lead nut lever tov 'disengage saiddisc and nut; means actuated bythe return of the carriage to its outerlimit of travel for 65 v`resetting said lever arm and for moving saidlead i nut lever to engage the nut carried thereby with the lead screw;and means actuated by the last named movement of the lead nut lever forunlatching said carriage latch.

7. In a machine adapted to play one or more recordings from a discrecord bearing a plurality of -recordings and including' a turn-table,a. lead screw driven by the turn-table, and a motor carriage movablealong said lead screw, the coin- 75 bination-of: a lever armpivotallyconnected to the carriage. said arm carrying a frictiondiscadapted to make'drlving contact with the turntable, a motor on saidcarriage, and a' driving connection between said motor and said frictiondisc; a toggle attached to said carriage and adapted to supportthe-movable end of said lever arm; a lead nut lever pivotally connectedto said carriage, said lever carrying a nut adapted to engage the leadscrew to move the carriage to its inner limit of travel; a yieldingconnec- .tion between -the 4movable end of said lead nut lever and saidlever arm; -spring means for moving the carriage to its outer limit oftravel; means for breaking said toggle and moving said lever arm andlead nut lever to dlsengage said disc and nut, said means becomingoperative when the carriage is at its inner limit of travel and meansfor resetting said toggle and lever arm when the carriage is at itsouter limit of travel.

8. In a machine adapted to play one -or more recordings from a. discrecord bearing a plurality of recordings and including a turn-table. alead screw driven by the tum-table, and a motor carriage movable alongsaid lead screw, the combination of:l a lever arm pivotally connected toadapted to make driving contact with the turntable, a motor on saidcarriage and a driving connection between said motor and said frictiondisc; a toggle attached to said carriage and adapted to support themovable end of said lever arm; a lead nut lever pivotally connected tosaid carriage, said lever carrying a nut adapted to engage the leadscrew to move the carriage to its inner limit of travel; a yieldingconnection between the movable end of said lead nut lever and said leverarm; spring means for moving the carriage to its outer limit of travel;.means for breaking said toggle and moving said lever arm and lead nutlever to disengage said disc and-nut, said means becoming operative whenthe carriage is at its inner limit of travel; ymeans for resetting saidtoggle when the carriage l's at its 2liA the carriage, said arm carryinga friction disc outer limit of travel, and means for latching thecarriage when it reaches its outer limit of travel prior to resetting of-said toggle. 9. -In a machine adapted to play one or more recordingsfrom a disc record bearing a. plurality of recordings and including aturn-table, a lead screw driven by the turn-table, and a motorcarriagevmovable along said lead screw. thecombination of 1 a lever armpivotally connectedto the carriage, said arm carrying a, frictiondiscadapted to make driving contact with the turntable, a motor on saidcarriage and a driving connection between said motor and said frictiondisc; a toggle attached to said carriage and adapted to support themovable end of said lever arm; a lead nut lever pivotally connected tosaid carriage, said lever carrying a nut adapted to engage the leadscrew to move the carriage to its inner limit of travel; a yieldingconnection.

between the movable end of said lead nut lever and said lever arm;spring means for moving the by the turn-tableQand a motor carriagemovable along said lead screw, thecombination of: a-

stop bar paralleling the direction of movement of said carriage, aplurality of spaced contacts on said stop bansaid contacts bearing apredetermined relation to the recordings on said disc; a brush arm onsaid carriage and in operative relation to the spaced contacts on saidstop bar:

and an electrical circuit including a` coin-actuated switch adapted toenergize the motor, said electrical circuit being adapted to deenergizethe motor when said brush 'arm makes connection with the contact on saidstop bar; a lever arm pivotally connected to the carriage, said armcarrying a friction disc adapted to make driving contact with theturn-table, a motor on said cary riage and a driving connectionbetweensaid motor and said friction disc; avlead nut lever' pivotally connectedto said carriage, said lever carrying a nut adapted to engage the leadscrew to move the carriage to its inner limit of travel;` spring meansfor moving the carriageto its outer limit of travel; a tone armpivotally carried by the motor carriage; and means releasable by thecarriage at the inner ,limit of travel thereof for moving said leverarm. lead nut lever and tone arm to disengage said friction disc and nutand raise saidtone arm.

11. In a phonograph adapted to play one or ,more recordings from a discrecord bearing a plurality of recordings, said phonograph including aturn-table for said disc, a lead screw driven by the turn-table. and amotor carriage movable along said lead screw. the combination of z astop bar paralleling the direction of movement of saidcarriage, aplurality -of spaced contacts on; said stop bar, said contacts bearing ax'iredetcrmined` relation to the recordings on said disc: a brush arm onsaid carriage and in operative relation to the spaced contacts on saidstop bar; and an electrical circuit including a coin-actuated switchadapted to energize the motor, said electrical circuit being adapted todeenergize the motor when said brush arm .makes connection with acontact on said stop bar: a lever arm pivotally connected to thecarriage, said arm carrying afriction disc adapted to make drivingcontact with the tum-table, a motor on said carriage and a drivingconnection between' said motor and said friction disc; a lead nut leverpivotally connected to said carriage, said lever carrying a nut adaptedto man the lead screw to move the carriage to its inner limit of travel;spring means for moving the carriage to itsouter limit of travel; a tonearm movable over the tum-table; means releasable by the carriage at theinner limit of travel thereof for moving saidlever arm.

lead nut lever and tone larm to disengage said friction disc and nut andraise said tone arm; and means actuated by the return of the carriage toits outer limit of travel for resetting said lever arm, for moving saidlead nut lever to engage the nut carriedthereby with the lead screw, andfor lowering the tone 'arm support.

12. In a phonograph adapted to play one or more recordings from a discrecord bearing'a plurality of recordings. said phonograph includlationto the spaced contacts on said stopbai; and an electrical circuitincluding a coin-actuated switch adapted to energize the motor, saidelectrical circuit being adapted to deenergize the motor when said brusharm makes connection with a contact on said stop bar; a lever armpivcarrying a nut adapted to engage the lead screw to move the carriageto its inner limit of travel; spring means for moving the carriage toits outer limit of travel; a tone arm' pivotally movable over saidturn-table; means4 releasable by the carriage at the inner limit oftravel thereof for' moving said lever armyleadnut lever and tone arm todisengage said friction disc and nut. and raise said tone arm; meansactuated by the returnof the carriage to its outer limit of travel .forresetting said .lever arm and m3381118 the friction disc carried therebywith the turn-table;

and means controlled by the lead screw for mov'- ing said lead nut leverto engage the nut carried thereby with the lead screw and for loweringthe tone arm at a controlled p'oint only of said lead-screw.

I13. In a phonograph adapted to play one or more recordings from a discrecord bearing a plurality of recordings. said phonograph including atum-table for said disc, a lead screw driven able along said lead screw,the combination of: a stop bar paralleling the direction of movement ofsaid carriage, a plurality of spaced. contacts by the turn-table. and amotor carriage movon said stop bar, said contacts bearing apredetermined relation to the recordings on said disc; a brush arm onsaid carriage and in operative relation to the spaced contacts on saidstop bar:

-and an electrical circuit including a coin-actuated switch adapted to.energize 'the motor, 'said electrical circuit being adapted todeenergize the motor when said brush arm makes connection .with acontact on said stop bar: a lever arm pivotally connected to thecarriage, said arm carrying a friction disc adapted to make vdrivingcontact with the turn-table, a motor on said carriage and a drivingconnection between saidmotor and said friction disc; a lead nut leverpivotally connected to said carriage, said lever carrying a nut adaptedto engage the lead screw tomove the carriage toits inner limit oftravel; spring means for moving the carriage to its outer limit voftravel; latch means forv holding said carriage It its outer limit oftravel; means actuated by movement of the carriage to its inner limit oftravel for moving said lever arm and lead nut lever to disengage saiddisc and nut; means actuated by the return of the carriage to its outerlimit of travel for resetting said lever arm and for movthereby with thelead screw; and means actuated by the last namedmovement o! the lead nutlever for unlatching said carriage latch.

i4. In a phonograph adapted to play one or more recordings from a discrecord bearing a plurality of recordings, said phonograph including aturn-table for said disc. a lead screw driven by the turn-table and amotor carriage movable along said lead screw, the combination of: Valead nut lever pivotally -connected'to said carriage, said levercarrying a nut adapted to engage the lead screw to move thecarriage: alever arm ing 'said lead nut lever to engage the nut carried l

